Coupling interlock



May 31, 1932. s, G, DOWN COUPLING INTERLOCK Filed May 5. 1928 ...ai v

E N m O www DW A ma M www. VDY Nl ISB Patented flVlay Y31, 1932;

unirse srAf'ras SIDNEY-fe. nowN, or Enenwoon, rnNNsYLvAN1s,-AssreNon To Tnn Wns'riNGHoUsE AIR BRAKE COMPANY, or vriitMEnnINe,'^:PNNNsvLvANre,4 A' conronATIoN on PENNSYLVANIA i coUrLINef INTERLQGKZ Applicanmieaivray 5,' i928. serial Nd. 275,348. n f n thusv permit 'the coupling @heads "to separate 16 when the cars are pulledapart. 4

Another important object ot' my invention is, therefore,to provide a simple and effective means for connectingthe coupling locking v pinof a car coupling with thelcam lever of 20 an automatic train'vpipe coupling, whereby upon movement ofV the couplingfpin to a re'- lease position, thecam lever-will be moved simultaneously therewith to anunlocked position, said means being so formed as to perl mit independent movement ofthe-car cou'- pling and train pipel coupling kto allow for YYmisalignment and the like. V e

In the accompanying drawings; Fig. l is coupling 'associated with a car coupling and illustrating ythe application of my yinvention thereto, parts of the device being shown broken away andwinsection; Fig.y 2 is a. tragmentary plan view, partly in section7 of the automatic train pipe coupling with my invention incorporated therewith; Fig. 3 is a detail horizontal section taken on the line 3-3 of Fig, l; Fig.` l is a `detail horizontal Fig. 5 is a detail vertical section taken on the line 5-5 of Fig. l.

,y The automatic train pipe coupling head 1r comprises a projecting nose 2 adapted yto engage in a recess 3 of a counterpart coupling yhead and hooked portion 4l for int erv lockingkwith a corresponding hook portion of a counterpart coupling head. The coupling head l is provided with a pivoted cani or latch lever y5 having a cam surface for engagingl a curved face 6 of a counterpart tion. This means may Vcomprise a shaft 16 a side elevation of an Yautomatic Atrain pipe section taken on the line 4.--4 of Fig.y l; and

coupling head. An inwardly extending curved 'arm 7 is formed on or carried by l`the cam lever 5 and has pivotally connected therel,to arod 8. A"member 9 is carried by thev inner end of the rod Sand interposed between said; member 9 anda xedabutment l() is a coil* spring l11, which` normally functions 4to hold the cam leverr 5in a locking position.

A guide pin 12, secured tok the coupling head, is ,adapted to lengage in aslot providedl in kthe ymember) to guide the same in its move'-kr ment.: V' [fhetrain pipe coupling is disposed below the {usual careoupler 13, V,which in this instance is provided with a depending well or casinglll. The coupling locking pin lextends into the well or casing'lll, as shown in Fig. 1 of the drawings. l

As stated, my invention resides'mor'e par-l ticularly in means for connecting thel cou- Avy Vjplery locking pin 15 Awith the cam lever 5 of' the train pipe couplinggto permit the un locking of, the cam lever` with the raising 1 of the couplerlocking pin l5 to a release posip slidvably and' rotatably mounted in thejcasing. lepand the upper endl of 'this shaft" 16 is provided [with a head 17 havingjsemicircular slots 18 formed therein."Headed Vfastening elements lQeXtend through the slots" l8and into they coupler locking pin 15 and form means for connecting the shaft with vthe klocking pin' and at the Sametime allow turning movement of thek shaft relative to said i pin. Spiral grooves QOare Jformed ,in the VVshaft and receive tongues 21 formed on'the casing lease that when the shaft 16'is raised with the pin l5 thesame willbe turned.

A. shatti22 is rotatably carried by the automatic train pipe 'coupling `and has formed 90 'thereon a crank arm 23, which is connected,

throughwthe medium of a link 24with the .arm 7 ofV the camlatch 5." Uponmovement otthecranlishaft 22 in a counter-clockwise l direction, the link 24e will eXert a pull on. the arm 7 and move thecam latch 5 to its released positionagainst the tension of the coil spring grooved shattAl-G and crankshaft@ are connected by universal joints 25 and 26. In-

terposed between the universal oints 25 and `26 is a telescoping section 27 which allows,

raising and lowering movement of the car coupling and train pipe coupling relative to one another and also vertical movement of the coupling pin relative to the crank shaft 22. The universal oints 25 and 26 allow for angular movement between the car and train pipe coupling.

When it is desired to uncouple a pair of cars equipped with the device, the coupling' locking pin 15 is raised through the usual mechanism (not shown), which will lift the shaft 16. This shaft 16, during its-raising movement, will be turned through themedium of the spiral roovesj20 and tongues 21. The turning o the shaft 16 is transmitted through the universal joints 25 and 26 and telescopic connection 27 to the crank shaft 22, which in turn will move the cam latch 5 to its release position. Upon release of the locking pin 15 the cam latch 5 will be returned to its normal position by the spring 11.

cluding a locking pin and an automatic train pipe coupling including a swingingY latch cam, of means operatively connecting the locking pin with the cam latch for Synchrok,nous unlocking movement including a shaft connected with the locking pin fori verticalmovement therewith, meansvv for imparting rotary movement to the shaft upon vertical movement thereof, and means for transmityting the rotary movement ofthe shaft to the swlnging cam latch.

2. The combination Vwith a car coupler including a looking pin and an automat-1c train pipe coupling including a swinging latch cam, of means operatively connecting the locking pin with the cam latch for synchronous unlocking movement including a shaft, means connecting the shaft rotatably with the pin and for vertical sliding movement therewith, means for imparting rotary movement to the f shaftupon sliding movement thereof, a crank shaft rotatably carried by the train coupling, a link connecting the crank shaft with the rswinging cam latch,fand a telescoping. and

universal joint between the first mentioned shaft and the crank shaft.

3. The combination with a car cou ler including a locking pin and an automatic train pipe coupling including a swinging latch cam, of means operatively connecting the y locking pin with the cam latch forsynchro- Vsaid nous unlocking movement including a shaft connected with the locking pin for vertical movement therewith, means for imparting rotary movement to the shaft upon vertical movement thereof, a crank shaft rotatably carried by the train pipe coupling, a link connecting the crank shaft with the swinging cam latch, a pair of spaced universal joints connected respectively to the first mentioned shaft and the crank shaft, and a telescoping connection between said universal joints.

4. The combination with a car coupler having an axially movable coupling pin and a train kpipe coupling having a rotatable locking lato of a shaft operatively connecting sald pin with said latch and having means for eecting the rotation of said shaft and said latch upon axial movement of said pin.

5. The combination with a car coupler having an axially movable coupling pin and a .train pipe coupling havingy a rotatable lockiiw latch, of an axially movable shaft operatively connecting said in with said latch and having means for em ecting the rotation of said latch upon axial movement of said in. j 6. The combination with a car coupler having an axially movable coupling pin and a train pipe coupling having a rotatable locking latclnof a shaft mounted for rotatable yand raxial movement operatively connecting in with said latch and ha-vingfmeans for e ecting the rotation of said latch upon axial movement of said pin.

T, The combination with a car cou ler havingl an axially movable coupling pn and a train pipe couplinghaving a rotatable lockn latch, of a vshaft arranged in end-to-end re ation to said coupling pin and operatively connecting said ,in with said latch and having means for e ecting the rotation of said latch upon axial movement of said pin.

In testimony whereof I have hereunto set m hand.

y SIDNEY G. DOWN.

ica 

